Thread rolling machine

Abstract

The invention discloses a thread rolling machine, and relates to the technical field of thread rolling machines, the thread rolling machine comprises a base, a shell, a thread rolling mechanism, a feeding mechanism and a cooling spray head, the base is provided with a chipping separation assembly, the chipping separation assembly is provided with a chipping treatment assembly, the shell is provided with a cooling liquid recovery assembly, the chipping separation assembly comprises a treatment box, and the treatment box is provided with a cooling liquid recovery assembly. And the inner side of the treatment box is fixedly connected with a first material guide pipe extending to the lower part of the thread rolling mechanism. When a bolt blank is subjected to thread rolling machining, generated chippings enter a treatment box from a first material guide pipe along with products, a servo motor is started to drive a rotating rod and a cam to rotate, a screening plate is pushed by the cam to move up and down in a reciprocating mode, the products on the top of the screening plate and the chippings are separated, and the chippings fall off from the screening plate; products are discharged from the discharging port and the second material guiding pipe, the advantage that the scraps are convenient to separate is achieved, and the situation that the scraps scratch operators or are mixed into the products, and the quality and safety of the products are affected can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of thread rolling machines, in particular to a thread rolling machine. Background Art

[0002] The thread rolling machine is a device for processing the outer surface of cylindrical workpieces. It is mostly used for processing small bolts. The thread rolling machine uses two identical thread rolling plates. The thread rolling surfaces of these two thread rolling plates have the same tooth shape and helix angle as the bolt thread. When the two thread rolling plates move relative to each other, the bolt blank between them will be squeezed and plastically deformed, thereby forming the required thread.

[0003] However, during the bolt processing process, the thread rolling machine generates a lot of heat and debris due to the friction between the high-speed thread rolling plate and the workpiece. This heat will cause the coolant to evaporate quickly. The main components of the evaporated coolant are water and some additives. When they exist in the air in gaseous form for a long time, they will be inhaled by the operator, causing throat discomfort and even respiratory diseases. These debris often have sharp edges. If not handled in time, they may not only scratch the operator, but also mix into the product, affecting the quality and safety of the product. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a thread rolling machine to solve the problems in the above technical scheme that the operator may inhale volatile coolant for a long time, which may affect his health, and the sharp debris that is not handled in time may scratch the operator and affect the product quality and safety.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a thread rolling machine, comprising a base, a shell, a thread rolling mechanism, a feeding mechanism and a cooling nozzle, a debris separation component is arranged on the base, a debris processing component is arranged on the debris separation component, and a coolant recovery component is arranged on the shell; The debris separation assembly includes a processing box, the inner side of which is fixedly connected to a first material guide pipe extending to the bottom of the thread rolling mechanism, the interior of which is slidably connected to a screening plate, the outer side of which is fixedly connected to a servo motor, the output shaft of which is fixedly connected to a rotating rod, the outer side of which is fixedly connected to a cam, and one side of the processing box is fixedly connected to a second material guide pipe; The debris processing assembly includes a mounting plate, one side of the mounting plate is rotatably connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a threaded block, the bottom of the threaded block is fixedly connected to a scraper, the inside of the processing box is fixedly connected to a limit rod, the rotating rod and the outer sides of the threaded rod are fixedly connected to a transmission wheel, and a belt is connected for transmission between the two transmission wheels.

[0006] As a preferred embodiment, one side of the processing box is fixedly connected to the base and the shell respectively, the output shaft of the servo motor extends to the interior of the processing box and is fixedly connected to the rotating rod, and the rotating rod is located below the sieve plate.

[0007] The beneficial effect of adopting the above-mentioned further scheme is: by clarifying that the output shaft of the servo motor is fixedly connected with the rotating rod inside the processing box, and pointing out that the rotating rod is located below the screening plate, it is ensured that the servo motor can drive the rotating rod and the cam thereon to rotate, and then the up and down movement of the screening plate is achieved through the interaction between the cam and the screening plate, which provides a power source for the screening of debris and improves the efficiency of debris processing.

[0008] As a preferred embodiment, the number of the cams is two and they are symmetrically distributed below the screen plate, and the distance that the screen plate moves up and down is equal to the distance between the major axis end and the minor axis end of the cam.

[0009] The beneficial effect of adopting the above further scheme is: the symmetrically distributed cam design can balance the force on the screen plate, ensuring that the screen plate is more stable when moving up and down. At the same time, the distance that the screen plate moves up and down is equal to the distance between the long axis end and the short axis end of the cam, which helps to accurately control the movement amplitude of the screen plate, thereby optimizing the debris screening effect and reducing the loss of debris during the screening process.

[0010] As a preferred embodiment, a discharge port is provided on a side of the processing box close to the second material guide pipe, the discharge port is located slightly higher than the highest movable point of the sieve plate, and the second material guide pipe is connected to the discharge port.

[0011] The beneficial effect of adopting the above further scheme is that the position of the discharge port opened on the side of the processing box close to the second material guide pipe is slightly higher than the highest movable point of the screen plate. This design ensures that the screened product can be discharged smoothly from the discharge port and exported through the second material guide pipe.

[0012] As a preferred embodiment, the number of the mounting plates is two and they are distributed up and down, the mounting plates are fixedly connected to the outside of the processing box and are located below the second material guide pipe, and the transmission wheel is located outside the processing box.

[0013] The beneficial effects of adopting the above-mentioned further scheme are: the design of the mounting plates distributed up and down, and the mounting plates fixedly connected to the outside of the processing box and located below the second material guide tube, provide a stable support structure for the threaded rod and the scraper thereon. At the same time, the transmission wheel is located outside the processing box, which helps to simplify the transmission structure, reduce maintenance costs, and ensure that the scraper can smoothly scrape the debris at the bottom of the processing box.

[0014] As a preferred embodiment, the top of the threaded block is fixedly connected to a limiting block, a limiting groove adapted to the moving trajectory of the limiting block is provided on the side of the limiting rod close to the threaded rod, the scraper is fitted with the inner bottom wall of the processing box, the side of the scraper close to the mounting plate is inclined, and the side wall of the processing box close to the servo motor is provided with a chip discharge port adapted to the scraper.

[0015] The beneficial effects of adopting the above-mentioned further scheme are: the limit block on the top of the threaded block cooperates with the limit groove on the limit rod to ensure the stability of the scraper during movement, avoids the threaded block rotating with the threaded rod, and also avoids the problem of scraper displacement or jamming. The scraper fits against the bottom wall of the processing box, and the side of the scraper close to the mounting plate is inclined, which helps to thoroughly scrape the debris at the bottom of the processing box and avoid debris residue. In addition, the chip outlet opened on the side wall of the processing box close to the servo motor provides a convenient channel for the discharge of debris.

[0016] As a preferred embodiment, the coolant recovery assembly includes a fixed tube, a collecting bottle is installed on the outside of the outer shell, a bottle stopper is movably connected to the collecting bottle, a connecting tube is fixedly connected to the fixed tube, the inside of the collecting bottle is fixedly connected to a stainless steel plate, and an exhaust fan is fixedly connected to the bottom of the stainless steel plate.

[0017] The beneficial effect of adopting the above further scheme is that the coolant recovery component realizes the recovery and reuse of the coolant through the mutual cooperation of the fixed tube, the collecting bottle, the bottle stopper, the connecting tube, the stainless steel plate and the exhaust fan. This design not only helps to save resources and reduce production costs, but also reduces the pollution of the coolant to the environment and improves the environmental performance of the thread rolling machine.

[0018] As a preferred embodiment, the fixing tube is fixedly connected to the shell and one end thereof extends to the left side of the cooling nozzle, a clamp is fixedly connected to the outer side of the shell, and the collecting bottle is installed on the outer side of the shell through the clamp.

[0019] The beneficial effect of adopting the above further solution is that the fixed connection between the fixed tube and the housing, and the collection bottle installed on the outside of the housing through the clamp, provide a stable installation structure for the coolant recovery assembly. This design ensures that the coolant recovery assembly can be firmly installed on the thread rolling machine, avoiding the problem of shaking or falling off during use, and improving the overall stability and safety of the thread rolling machine. At the same time, one end of the fixed tube extends to the left side of the cooling nozzle, which helps to efficiently collect coolant and improve recovery efficiency.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are: 1. When the bolt blank is undergoing thread rolling processing, the generated debris enters the processing box together with the product from the first guide pipe, the servo motor is started to drive the rotating rod and the cam to rotate, and the cam pushes the screening plate to move up and down to separate the product and the debris on the top, the debris falls from the screening plate, and the product is discharged from the discharge port and the second guide pipe, thereby achieving the benefit of easy separation of debris, and preventing the debris from scratching the operator or mixing into the product, affecting the quality and safety of the product.

[0021] 2. In the present invention, under the drive of the transmission wheel and the belt, the threaded rod rotates together with the rotating rod. Under the joint restriction of the limit block, the limit rod and the limit groove, the threaded block drives the scraper to move back and forth in the processing box, and the debris on the bottom wall of the processing box can be hung out from the chip outlet, so that the debris is easy to be processed in a centralized manner, and the debris can be further prevented from scratching the operator or mixing into the product, affecting the quality and safety of the product.

[0022] 3. In the present invention, when the bolt blank is undergoing thread rolling, coolant is sprayed out through the cooling nozzle. The coolant volatilizes under the action of a large amount of heat generated during the thread rolling process. The exhaust fan is started, and the volatilized coolant gas is sucked into the collecting bottle under the connection between the connecting pipe and the fixed pipe. The gaseous coolant with a certain amount of heat encounters the stainless steel plate and is cooled back into liquid. The coolant is recovered through the collecting bottle, and at the same time, the volatilized coolant is prevented from being inhaled into the body of the operator, thereby causing physical discomfort to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a thread rolling machine; Figure 2 It is a schematic diagram of the structure of the other shaft side of a thread rolling machine; Figure 3 It is a schematic diagram of the internal structure of a thread rolling machine processing box and related parts; Figure 4 A tooth rolling machine Figure 3 Enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the structure of the debris processing assembly and related parts of a thread rolling machine; Figure 6 It is a schematic diagram of the coolant recovery assembly and related parts of a thread rolling machine; Figure 7 The invention discloses a schematic diagram of the internal structure of a collecting bottle of a tooth rolling machine and related parts.

[0024] Description of reference numerals: 1. Base; 2. Shell; 3. Thread rolling mechanism; 4. Feeding mechanism; 5. Cooling nozzle; 6. Debris separation assembly; 601. Processing box; 602. First material guide pipe; 603. Screening plate; 604. Servo motor; 605. Rotating rod; 606. Cam; 607. Second material guide pipe; 7. Debris processing assembly; 701. Mounting plate; 702. Threaded rod; 703. Threaded block; 704. Scraper; 705. Limit rod; 706. Drive wheel; 707. Belt; 8. Coolant recovery assembly; 801. Fixed pipe; 802. Collection bottle; 803. Bottle stopper; 804. Connecting pipe; 805. Stainless steel plate; 806. Exhaust fan. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the present invention provides a technical solution: a thread rolling machine, comprising a base 1, a shell 2, a thread rolling mechanism 3, a feeding mechanism 4 and a cooling nozzle 5, a debris separation component 6 is arranged on the base 1, a debris processing component 7 is arranged on the debris separation component 6, and a coolant recovery component 8 is arranged on the shell 2; The debris separation assembly 6 includes a processing box 601, the inner side of which is fixedly connected to a first material guide pipe 602 extending to the bottom of the thread rolling mechanism 3, the inner side of which is slidably connected to a screening plate 603, the outer side of which is fixedly connected to a servo motor 604, the output shaft of which is fixedly connected to a rotating rod 605, the outer side of which is fixedly connected to a cam 606, and one side of the processing box 601 is fixedly connected to a second material guide pipe 607; The debris processing assembly 7 includes a mounting plate 701, one side of the mounting plate 701 is rotatably connected to a threaded rod 702, the outer side of the threaded rod 702 is threadedly connected to a threaded block 703, the bottom of the threaded block 703 is fixedly connected to a scraper 704, the interior of the processing box 601 is fixedly connected to a limiting rod 705, the rotating rod 605 and the outer side of the threaded rod 702 are fixedly connected to a transmission wheel 706, and a belt 707 is connected for transmission between the two transmission wheels 706.

[0027] like Figure 1, Figure 2 and Figure 3 As shown, one side of the processing box 601 is fixedly connected to the base 1 and the housing 2 respectively, the output shaft of the servo motor 604 extends to the inside of the processing box 601 and is fixedly connected to the rotating rod 605, and the rotating rod 605 is located below the screening plate 603; There are two cams 606 symmetrically distributed below the screening plate 603 . The distance that the screening plate 603 moves up and down is equal to the distance between the major axis end and the minor axis end of the cam 606 .

[0028] A discharge port is provided on one side of the processing box 601 close to the second material guide pipe 607 . The position of the discharge port is slightly higher than the highest movable point of the sieve plate 603 . The second material guide pipe 607 is connected to the discharge port.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, there are two mounting plates 701 and they are distributed up and down. The mounting plates 701 are fixedly connected to the outside of the processing box 601 and are located below the second material guide pipe 607. The transmission wheel 706 is located outside the processing box 601. The top of the threaded block 703 is fixedly connected to a limiting block, and a limiting groove adapted to the moving trajectory of the limiting block is provided on the side of the limiting rod 705 close to the threaded rod 702. The scraper 704 is fitted with the inner bottom wall of the processing box 601, and the side of the scraper 704 close to the mounting plate 701 is inclined. The side wall of the processing box 601 close to the servo motor 604 is provided with a chip discharge port adapted to the scraper 704.

[0030] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the coolant recovery assembly 8 includes a fixed pipe 801, a collecting bottle 802 is installed on the outer side of the housing 2, a bottle plug 803 is movably connected to the collecting bottle 802, a connecting pipe 804 is fixedly connected to the fixed pipe 801, which passes through the bottle plug 803 and extends into the collecting bottle 802, a stainless steel plate 805 is fixedly connected to the inside of the collecting bottle 802, and an exhaust fan 806 is fixedly connected to the bottom of the stainless steel plate 805; like Figure 2 As shown, a strip vent hole is provided on one side of the collecting bottle 802 away from the base 1 , so that the air sucked into the collecting bottle 802 together with the vaporized coolant can be discharged, thereby avoiding the occurrence of high pressure inside the collecting bottle 802 .

[0031] The fixed tube 801 is fixedly connected to the shell 2 and one end of the fixed tube 801 extends to the left side of the cooling nozzle 5. A clamp is fixedly connected to the outer side of the shell 2, and the collecting bottle 802 is installed on the outer side of the shell 2 through the clamp.

[0032] Working principle: The bolt blank is fed into the thread rolling mechanism 3 for processing through the feeding mechanism 4, and the cooling liquid is sprayed out through the cooling nozzle 5. The debris generated during the processing follows the product and falls into the screening plate 603 in the processing box 601 through the first guide pipe 602. The servo motor 604 is started to drive the rotating rod 605 to rotate, which in turn drives the cam 606 to rotate, pushing the screening plate 603 up and down for screening. The fine debris passes through the screening plate 603 and falls into the bottom of the processing box 601. The product is discharged from the discharge port and the second guide pipe 607. At the same time, the rotating rod 605 passes through the transmission wheel 706 and The belt 707 drives the threaded rod 702 to rotate, so that the threaded block 703 moves along the direction of the limiting rod 705. At the same time, it drives the scraper 704 to scrape the debris at the bottom of the processing box 601, and finally discharge it through the chip outlet. The coolant vaporized in the processing process is sucked into the collection bottle 802 by the exhaust fan 806 through the fixed pipe 801 and the connecting pipe 804. When the vaporized coolant with a certain amount of heat encounters the stainless steel plate 805, it is cooled and condensed into liquid on its surface, and flows into the collection bottle 802 for recovery. The automatic separation and processing of debris and the recycling of coolant are realized in the whole process.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A thread rolling machine, comprising a base (1), a housing (2), a thread rolling mechanism (3), a feeding mechanism (4) and a cooling nozzle (5), characterized in that: The base (1) is provided with a debris separation component (6), the debris separation component (6) is provided with a debris processing component (7), and the housing (2) is provided with a coolant recovery component (8); The debris separation assembly (6) comprises a processing box (601), the inner side of the processing box (601) is fixedly connected to a first material guide pipe (602) extending to the bottom of the thread rolling mechanism (3), the interior of the processing box (601) is slidably connected to a screening plate (603), the outer side of the processing box (601) is fixedly connected to a servo motor (604), the output shaft of the servo motor (604) is fixedly connected to a rotating rod (605), the outer side of the rotating rod (605) is fixedly connected to a cam (606), and one side of the processing box (601) is fixedly connected to a second material guide pipe (607); The debris processing assembly (7) comprises a mounting plate (701), one side of the mounting plate (701) is rotatably connected to a threaded rod (702), the outer side of the threaded rod (702) is threadedly connected to a threaded block (703), the bottom of the threaded block (703) is fixedly connected to a scraper (704), the interior of the processing box (601) is fixedly connected to a limit rod (705), the rotating rod (605) and the outer sides of the threaded rod (702) are fixedly connected to a transmission wheel (706), and a belt (707) is transmission-connected between the two transmission wheels (706).

2. A thread rolling machine according to claim 1, characterized in that: One side of the processing box (601) is fixedly connected to the base (1) and the housing (2) respectively, and the output shaft of the servo motor (604) extends into the interior of the processing box (601) and is fixedly connected to a rotating rod (605), and the rotating rod (605) is located below the screening plate (603).

3. A thread rolling machine according to claim 1, characterized in that: The number of the cams (606) is two and they are symmetrically distributed below the screening plate (603); the distance that the screening plate (603) moves up and down is equal to the distance between the long axis end and the short axis end of the cam (606).

4. A thread rolling machine according to claim 1, characterized in that: A discharge port is provided on one side of the processing box (601) close to the second material guide pipe (607). The position of the discharge port is slightly higher than the highest movable point of the sieve plate (603). The second material guide pipe (607) is connected to the discharge port.

5. A thread rolling machine according to claim 1, characterized in that: There are two mounting plates (701) distributed vertically; the mounting plates (701) are fixedly connected to the outside of the processing box (601) and are located below the second material guide pipe (607); and the transmission wheel (706) is located outside the processing box (601).

6. A thread rolling machine according to claim 1, characterized in that: The top of the threaded block (703) is fixedly connected to a limit block, a limit groove matching the moving track of the limit block is provided on a side of the limit rod (705) close to the threaded rod (702), the scraper (704) is fitted with the inner bottom wall of the processing box (601), a side of the scraper (704) close to the mounting plate (701) is inclined, and a chip outlet matching the scraper (704) is provided on a side wall of the processing box (601) close to the servo motor (604).

7. A thread rolling machine according to claim 1, characterized in that: The coolant recovery component (8) comprises a fixed tube (801), a collecting bottle (802) is installed on the outer side of the shell (2), a bottle stopper (803) is movably connected to the collecting bottle (802), a connecting tube (804) is fixedly connected to the fixed tube (801) and passes through the bottle stopper (803) and extends into the collecting bottle (802), a stainless steel plate (805) is fixedly connected to the inside of the collecting bottle (802), and an exhaust fan (806) is fixedly connected to the bottom of the stainless steel plate (805).

8. A thread rolling machine according to claim 7, characterized in that: The fixed tube (801) is fixedly connected to the outer shell (2) and one end of the fixed tube extends to the left side of the cooling nozzle (5). A clamp is fixedly connected to the outer side of the outer shell (2), and the collecting bottle (802) is mounted on the outer side of the outer shell (2) via the clamp.

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